ATSAME51N19A-AF - 120MHz Cortex-M4F MCU 512KB Flash TQFP-100
MPN: ATSAME51N19A-AF ✓ Hoạt độngATSAME51N19A-AF Tóm tắt
A microcontroller (MCU) is a single-chip computer integrating a CPU core, memory (Flash and SRAM), and programmable peripherals. The Cortex-M4F is an ARM 32-bit core with DSP and single-precision floating point acceleration; it sits above Cortex-M0/M3 in the ARMv7-M family hierarchy and below Cortex-M7. Microchip's SAM E51 series is part of the broader SAM family of Cortex-M based microcontrollers (SAMD/SAME/SAMS/SAML), targeting industrial and general-purpose use cases with rich connectivity and analog peripherals.
Key features of the ATSAME51N19A-AF include up to 120 MHz CPU clock with FPU/DSP, 512 KB Dual-Panel Flash, 192 KB SRAM, full-speed USB 2.0 with embedded PHY, CAN-FD, up to 6 SERCOM (configurable USART/SPI/I2C/LIN), 12-bit 1 MSPS ADC with up to 32 channels, two 12-bit DACs, and a capacitive touch (PTC) peripheral. The device operates from 2.7 V to 5.5 V and offers an extended industrial temperature range of -40 C to +125 C. An on-chip Event System and SleepWalking peripherals enable ultra-low-power operation in battery-powered designs.
Typical applications include industrial PLCs, motor drives (BLDC/PMSM FOC), building automation controllers, smart energy metering, IoT gateways, and human-machine interface (HMI) panels. The combination of CAN-FD and USB makes it a strong candidate for industrial nodes bridging factory-floor networks to host systems, while the 1 MSPS ADC and 12-bit DACs simplify precision analog front-ends.
When designing with the ATSAME51N19A-AF, ensure decoupling capacitance (typically 100 nF per VDD pin plus a 4.7 uF bulk) is placed within 3 mm of the supply pins. The 100-pin TQFP package (14x14 mm) leaves sufficient copper area on most 2- or 4-layer boards for the reference thermal envelope. For firmware development, Microchip's MPLAB X IDE with MHC (MPLAB Harmony Configurator) generates the clock tree and peripheral initialization, while Atmel START remains a legacy option.
This page consolidates distributor stock and lead-time signals, drop-in same-package alternatives, and practical design guidance beyond the manufacturer datasheet to support sourcing, second-source qualification, and schematic design reviews.
Bộ thay thế dễ dàng lắp đặt cho ATSAME51N19A-AF — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với ATSAME51N19A-AF (cùng hình factor và footprint) — khác nhau ở USB, Operating Temperature, SRAM, CAN, DAC.
ATSAME51N20A-AF
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAME51J19A-AF
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAME51G19A-AF
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ATSAME51J18A-AF
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAMD51N19A-AF
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAMD51N20A-AF
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAME51N19A-AF Tỷ lệ tối đa & tính chất điện
| Manufacturer | Microchip Technology |
| Series | SAM E51 |
| Core | ARM Cortex-M4F (32-bit, FPU + DSP) |
| Maximum CPU Clock | 120 MHz |
| Flash Memory | 512 KB (Dual Panel) |
| SRAM | 192 KB |
| Operating Voltage (VDD) | 2.7 V to 5.5 V |
| Nhiệt độ hoạt động | -40 C to +125 C (Extended Industrial) |
| Hộp | 100-pin TQFP (14x14 mm) |
| Kiểu lắp đặt | Surface Mount |
| USB | USB 2.0 Full-Speed with embedded PHY |
| CAN | CAN-FD |
| SERCOM / Comms | Up to 6 SERCOM (USART/SPI/I2C/LIN configurable) |
| ADC | 12-bit, up to 1 MSPS, up to 32 channels |
| DAC | 2 x 12-bit |
| Touch Peripheral (PTC) | Yes (capacitive touch) |
| FPU | Single-precision IEEE 754 |
| Trạng thái RoHS | Compliant |
Cấu hình chân ATSAME51N19A-AF
| Chân 1 | PA00 — General-purpose I/O / SERCOM pad |
| Chân 2 | PA01 — General-purpose I/O / SERCOM pad |
| Chân 3 | PA02 — General-purpose I/O / analog / SERCOM pad |
| Chân 4 | PA04 — General-purpose I/O / analog / SERCOM pad |
| Chân 5 | PA05 — General-purpose I/O / analog / SERCOM pad |
| Chân 6 | PA06 — General-purpose I/O / analog / SERCOM pad |
| Chân 7 | PA07 — General-purpose I/O / analog / SERCOM pad |
| Chân 8 | VDD — Digital supply voltage |
| Chân 9 | GND — Ground |
| Chân 10 | PA08 — General-purpose I/O / SERCOM pad |
| Chân 11 | PA09 — General-purpose I/O / SERCOM pad |
| Chân 12 | PA10 — General-purpose I/O / SERCOM pad |
| Chân 13 | PA11 — General-purpose I/O / SERCOM pad |
| Chân 14 | VSS — Ground |
| Chân 15 | PA12 — General-purpose I/O / SERCOM pad |
| Chân 16 | PA13 — General-purpose I/O / SERCOM pad |
| Chân 17 | PA14 — General-purpose I/O / SERCOM pad |
| Chân 18 | PA15 — General-purpose I/O / SERCOM pad |
| Chân 19 | PA16 — General-purpose I/O / SERCOM pad |
| Chân 20 | PA17 — General-purpose I/O / SERCOM pad |
| Chân 21 | PA18 — General-purpose I/O / SERCOM pad |
| Chân 22 | PA19 — General-purpose I/O / SERCOM pad |
| Chân 23 | PA20 — General-purpose I/O / SERCOM pad |
| Chân 24 | PA21 — General-purpose I/O / SERCOM pad |
| Chân 25 | PA22 — General-purpose I/O / SERCOM pad |
| Chân 26 | PA23 — General-purpose I/O / SERCOM pad |
| Chân 27 | PA24 — General-purpose I/O / SERCOM pad |
| Chân 28 | PA25 — General-purpose I/O / SERCOM pad |
| Chân 29 | PB00 — General-purpose I/O / analog / SERCOM pad |
| Chân 30 | PB01 — General-purpose I/O / analog / SERCOM pad |
| Chân 31 | PB02 — General-purpose I/O / analog / SERCOM pad |
| Chân 32 | PB03 — General-purpose I/O / analog / SERCOM pad |
| Chân 33 | PB04 — General-purpose I/O / analog / SERCOM pad |
| Chân 34 | PB05 — General-purpose I/O / analog / SERCOM pad |
| Chân 35 | PB06 — General-purpose I/O / analog / SERCOM pad |
| Chân 36 | PB07 — General-purpose I/O / analog / SERCOM pad |
| Chân 37 | PB08 — General-purpose I/O / SERCOM pad |
| Chân 38 | PB09 — General-purpose I/O / SERCOM pad |
| Chân 39 | PB10 — General-purpose I/O / SERCOM pad |
| Chân 40 | PB11 — General-purpose I/O / SERCOM pad |
| Chân 41 | PB12 — General-purpose I/O / SERCOM pad |
| Chân 42 | PB13 — General-purpose I/O / SERCOM pad |
| Chân 43 | PB14 — General-purpose I/O / SERCOM pad |
| Chân 44 | PB15 — General-purpose I/O / SERCOM pad |
| Chân 45 | VDD — Digital supply voltage |
| Chân 46 | GND — Ground |
| Chân 47 | PC00 — General-purpose I/O / SERCOM pad |
| Chân 48 | PC01 — General-purpose I/O / SERCOM pad |
| Chân 49 | PC02 — General-purpose I/O / SERCOM pad |
| Chân 50 | PC03 — General-purpose I/O / SERCOM pad |
| Chân 51 | PC04 — General-purpose I/O / SERCOM pad |
| Chân 52 | PC05 — General-purpose I/O / SERCOM pad |
| Chân 53 | PC06 — General-purpose I/O / SERCOM pad |
| Chân 54 | PC07 — General-purpose I/O / SERCOM pad |
| Chân 55 | PC08 — General-purpose I/O / SERCOM pad |
| Chân 56 | PC09 — General-purpose I/O / SERCOM pad |
| Chân 57 | PC10 — General-purpose I/O / SERCOM pad |
| Chân 58 | PC11 — General-purpose I/O / SERCOM pad |
| Chân 59 | PC12 — General-purpose I/O / SERCOM pad |
| Chân 60 | PC13 — General-purpose I/O / SERCOM pad |
| Chân 61 | PC14 — General-purpose I/O / SERCOM pad |
| Chân 62 | PC15 — General-purpose I/O / SERCOM pad |
| Chân 63 | PC16 — General-purpose I/O / SERCOM pad |
| Chân 64 | PC17 — General-purpose I/O / SERCOM pad |
| Chân 65 | PC18 — General-purpose I/O / SERCOM pad |
| Chân 66 | PC19 — General-purpose I/O / SERCOM pad |
| Chân 67 | PC20 — General-purpose I/O / SERCOM pad |
| Chân 68 | PC21 — General-purpose I/O / SERCOM pad |
| Chân 69 | PC22 — General-purpose I/O / SERCOM pad |
| Chân 70 | PC23 — General-purpose I/O / SERCOM pad |
| Chân 71 | PC24 — General-purpose I/O / SERCOM pad |
| Chân 72 | PC25 — General-purpose I/O / SERCOM pad |
| Chân 73 | PC26 — General-purpose I/O / SERCOM pad |
| Chân 74 | PC27 — General-purpose I/O / SERCOM pad |
| Chân 75 | PC28 — General-purpose I/O / SERCOM pad |
| Chân 76 | VDD — Digital supply voltage |
| Chân 77 | GND — Ground |
| Chân 78 | PD00 — General-purpose I/O / SERCOM pad |
| Chân 79 | PD01 — General-purpose I/O / SERCOM pad |
| Chân 80 | PD02 — General-purpose I/O / SERCOM pad |
| Chân 81 | PD03 — General-purpose I/O / SERCOM pad |
| Chân 82 | PD04 — General-purpose I/O / SERCOM pad |
| Chân 83 | PD05 — General-purpose I/O / SERCOM pad |
| Chân 84 | PD06 — General-purpose I/O / SERCOM pad |
| Chân 85 | PD07 — General-purpose I/O / SERCOM pad |
| Chân 86 | PD08 — General-purpose I/O / SERCOM pad |
| Chân 87 | PD09 — General-purpose I/O / SERCOM pad |
| Chân 88 | PD10 — General-purpose I/O / SERCOM pad |
| Chân 89 | PD11 — General-purpose I/O / SERCOM pad |
| Chân 90 | PD12 — General-purpose I/O / SERCOM pad |
| Chân 91 | VSS — Ground |
| Chân 92 | VDDIO — I/O supply voltage |
| Chân 93 | NRST — External reset (active low) |
| Chân 94 | SWDIO — Serial Wire Debug I/O |
| Chân 95 | SWCLK — Serial Wire Debug clock |
| Chân 96 | VBUS — USB VBUS sense |
| Chân 97 | DM — USB D- data line |
| Chân 98 | DP — USB D+ data line |
| Chân 99 | VDD — Digital supply voltage |
| Chân 100 | GND — Ground |
Ứng dụng tiêu biểu
ATSAME51N19A-AF phù hợp cho 6 Áp dụngs: Industrial PLC and Automation Controller, BLDC / PMSM Motor Drive (FOC), Building Automation and HVAC Controller, Smart Energy Meter / Power Monitor, IoT Gateway / Sensor Hub, Human-Machine Interface (HMI) Panel.
Industrial PLC and Automation Controller
The ATSAME51N19A-AF is well matched to industrial PLC and automation controllers thanks to its 120 MHz Cortex-M4F core with FPU/DSP, CAN-FD interface, and up to 6 configurable SERCOM channels for SPI/I2C/UART sensor and actuator buses. With 512 KB of dual-panel Flash and 192 KB SRAM, the MCU can host IEC 60840 task scheduling, run a real-time OS, and buffer fieldbus telemetry. The 2.7 V to 5.5 V supply range matches 24 V-rail-derived industrial power rails after regulation, and the -40 C to +125 C extended industrial temperature range supports cabinet and unconditioned shop-floor deployments. Consider pairing with the ADM3251E isolated CAN transceiver and a 100 Mbps Ethernet MAC companion for plant-network bridging.
Được đề xuất
BLDC / PMSM Motor Drive (FOC)
The ATSAME51N19A-AF targets sensorless or encoder-based BLDC and PMSM motor drives, where the Cortex-M4F with single-precision FPU accelerates Park/Clarke/PMSM math for field-oriented control (FOC). The 12-bit 1 MSPS ADC samples back-EMF and phase currents with deterministic timing, while the 100-pin TQFP exposes PWM timers and quadrature encoder inputs for six-step trapezoidal commutation. Operating from a single 3.3 V or 5 V rail with 120 MHz headroom, the MCU closes the current loop in under a microsecond, leaving enough margin for housekeeping and CAN-FD telemetry. Reference motor-control libraries and Motor Control Application Notes from Microchip accelerate development.
Được đề xuất
Building Automation and HVAC Controller
The ATSAME51N19A-AF fits building automation and HVAC controllers that integrate Modbus/CAN-FD field networks, capacitive touch keypads, and low-power sleep modes. The Peripheral Touch Controller (PTC) enables robust glass-front-panel touch interfaces without external ICs, while SERCOM channels drive RS-485 transceivers and sensor I2C buses. With 192 KB SRAM the MCU can run a real-time scheduler plus a TLS stack for secure cloud updates, and SleepWalking peripherals reduce idle current below 50 uA/MHz for battery-backed thermostat designs. The wide 2.7 V to 5.5 V input tolerates HVAC bus power directly.
Được đề xuất
Smart Energy Meter / Power Monitor
For smart energy meters and power-quality monitors, the ATSAME51N19A-AF provides the simultaneous-sampling ADC needed for multi-phase voltage and current acquisition and the Cortex-M4F DSP extensions accelerate FFT-based harmonic analysis. USB Full-Speed eases local data export to service tools, while CAN-FD or SERCOM-modulated RS-485 supports AMI/AMR backhaul. The 512 KB Flash holds a metering application plus calibration tables, and the 192 KB SRAM buffers waveform snapshots between transmissions. The extended industrial temperature range is suitable for outdoor cabinet installations.
Được đề xuất
IoT Gateway / Sensor Hub
The ATSAME51N19A-AF is a strong fit for IoT gateways and sensor hubs that aggregate Modbus, CAN, I2C sensor, and SPI device streams before forwarding over USB or Ethernet MAC add-on. The 120 MHz FPU supports on-device edge analytics (FFT, anomaly detection) while SERCOMM swarms aggregate dozens of sensors concurrently. With USB device capability and ample Flash for OTA staging, the MCU is the local intelligence in industrial IoT nodes where Linux-class gateways are overkill. The wide VDD range and SleepWalking peripherals keep average power low for solar/battery field deployments.
Được đề xuất
Human-Machine Interface (HMI) Panel
The ATSAME51N19A-AF drives small HMI panels where the Cortex-M4F renders graphics to an SPI/parallel TFT LCD, reads capacitive touch via the on-chip PTC, and exchanges data with a host PLC over CAN-FD or USB. The 12-bit DACs generate contrast/backlight bias voltages, while SERCOM channels drive UART/RS-485 to subordinate devices. With 512 KB Flash the MCU stores fonts, icons, and a lightweight GUI library (e.g., LVGL) without external memory. The TQFP-100 package exposes enough GPIO for direct TFT interfacing at small QVGA resolutions.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ATSAME51N19A-AF — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | ATSAME51N20A-AF | ATSAME51J19A-AF | ATSAME51G19A-AF | ATSAME51J18A-AF | ATSAMD51N19A-AF | ATSAMD51N20A-AF |
|---|---|---|---|---|---|---|---|
| Package | 100-pin TQFP (14x14 mm) | 100-pin TQFP (14x14 mm) - same | 100-pin TQFP (14x14 mm) - same | 100-pin TQFP (14x14 mm) - same | 100-pin TQFP (14x14 mm) - same | 100-pin TQFP (14x14 mm) - same | 100-pin TQFP (14x14 mm) - same |
| Brand | Microchip Technology | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same |
| Core | ARM Cortex-M4F @ 120 MHz | ARM Cortex-M4F @ 120 MHz | ARM Cortex-M4F @ 120 MHz | ARM Cortex-M4F @ 120 MHz | ARM Cortex-M4F @ 120 MHz | ARM Cortex-M4F @ 120 MHz | ARM Cortex-M4F @ 120 MHz |
| CAN-FD | Yes | Yes | Yes | Yes | Yes | No (SAMD51 lacks CAN-FD) | No (SAMD51 lacks CAN-FD) |
| USB Full-Speed | Yes (embedded PHY) | Yes (embedded PHY) | Yes (embedded PHY) | Yes (embedded PHY) | Yes (embedded PHY) | Yes (embedded PHY) | Yes (embedded PHY) |
| Operating Voltage | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V |
| Operating Temperature | -40 C to +125 C (Extended Industrial) | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C |
Bảo phân biệt quan trọng
- Balanced Flash-to-RAM ratio for industrial control with CAN-FD (vsATSAME51J19A-AF)
- Extended industrial temperature range in TQFP-100 (vsATSAME51G19A-AF)
- CAN-FD support versus the SAMD51 family (vsATSAMD51N19A-AF)
- USB Full-Speed with embedded PHY (vsATSAME54 family (LQFP-64))
Ghi chú thiết kế
Decouple each VDD pin with a 100 nF X7R ceramic placed within 3 mm of the IC. Add a single 4.7 uF X5R bulk capacitor shared by the digital supply rails and a 1 uF on the analog AVDD pin. The wide 2.7 V to 5.5 V input allows direct connection to a regulated 3.3 V rail; for 5 V systems confirm headroom against the 5.5 V absolute maximum. Place a ferrite bead between the digital and analog supplies to reduce ADC reference switching noise.
The 100-pin TQFP (14x14 mm) has 0.5 mm pitch pads and a center thermal pad must be soldered for thermal and electrical performance. Use a 4-layer PCB with a continuous ground plane directly under the device to minimize return-path inductance for the SERCOM and USB signals. Keep the 12-bit ADC traces short and isolated from PWM outputs; add a ground guard ring around the ADC input traces to suppress crosstalk from the high-current motor pins.
Do not float the NRST pin: tie it to VDD through a 10 kohm pull-up and a 1 nF to 10 nF capacitor to ground for a clean power-on-reset. The SWDIO and SWCLK pins must be pulled high in application or released via the Microchip debugger; failure to release SWDIO can block firmware updates. The USB DM/DP lines require 27 ohm to 33 ohm series resistors and a 1 uF VBUS decoupling capacitor per the USB 2.0 Full-Speed specification. For CAN-FD, ensure the transceiver TXD pin is configured as push-pull and the CANRX pin is sampled at least once per bit time.
Estimated: at 120 MHz CPU clock, typical core current is approximately 10 mA to 15 mA per Microchip SAM E51 datasheet estimates, yielding about 0.05 W at 3.3 V. The TQFP-100 has a theta_JA around 60 C/W on a 2-layer JEDEC test board, giving a junction temperature rise of 3 C over ambient - well below the 125 C limit even without a thermal pad. For designs operating in enclosed industrial cabinets with elevated ambient, add a small copper flood under the exposed pad and stitch vias to the opposite ground plane.
Thông tin tuân thủ
RoHS and lead-free per Microchip product page; not AEC-Q100 qualified - the SAM E51 family targets industrial, not automotive, applications.
